Zhong Guo Jin Rong Xin Xi Wang·2025-06-04 12:38Core Viewpoint - The successful development and application of domestically produced back-pressure mechanical block devices in shale gas wells by Sinopec's Fuling Shale Gas Company significantly enhance operational safety and reduce costs compared to imported ceramic rupture discs [1][3][4]. Group 1: Technology Development - The domestically developed back-pressure mechanical block device has been successfully applied in seven gas wells, replacing imported ceramic rupture discs and improving operational safety [1][3]. - A technical team was formed to address the challenges of high operational risks and costs associated with gas well operations, leading to the successful development of the new device after nearly three months of research and optimization [3][4]. Group 2: Cost and Safety Benefits - The new block device reduces tool costs by an average of 15,000 yuan per well, contributing to significant cost savings in operations [1]. - Unlike imported ceramic rupture discs, which can lead to catastrophic blowout failures, the new device allows for controlled pressure release, providing operators with sufficient time to manage potential blowouts, thus enhancing safety [4]. Group 3: Future Plans - The Fuling Shale Gas Company plans to continue optimizing and gradually promoting the use of the domestically developed block device, with the goal of fully replacing imported rupture discs to further enhance operational efficiency and cost-effectiveness [4].